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Not enough known about chronic brain injury

John Swartzberg, clinical professor emeritus, public health | November 24, 2009

I’m skeptical that this will make a difference.  We have very little knowledge about repetitive trauma to the brain and chronic brain injury.  All a neurologist will be able to say after a concussion is that the player is back to his/her steady state.  There is little data to inform whether or not a second, third, fourth, etc. traumatic event to the head will lead to chronic problems.

Until we understand this topic, doctors will not be able to adequately advise patients (players) as to their long-term risk.